Question

plzzz tell me the solution of this question

Answer 1

Let the tens digit be x
and the units digit be y

The no.= 10x+y

Given,
x+y= 9
=> y= 9-x

No.= 6(unit digit)
10x+y= 6y
=>10x = 5y
=> x= 2y
Substitute y value
x= 2(9-x)
=> x= 18 - 2x
=> 3x= 18
=> x= 6
•°• tens digit x=6

and
y= 9-x= 9-6= 3
•°• Units digit y= 3


•°• The no. = 63


;)
hope it helps